GHSA-fm22-g2q9-j3pw
Joomla! CMS vulnerable to XSS via the input filter
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | joomla/filter | >= 4.0.0, < 4.0.1 | 4.0.1 |
| Packagist | joomla/filter | >= 3.0.0, < 3.0.5 | 3.0.5 |
| Packagist | joomla/filter | < 2.0.6 | 2.0.6 |
Details
As written in the advisory (Markdown source, shown as plain text).
Improper handling of input could lead to a cross-site scripting (XSS) vector in the checkAttribute method of the input filter framework class.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2025-54476
- https://github.com/joomla-framework/filter/commit/188dd3fccd6fa0532d105a52736affdf6b166217
- https://github.com/joomla-framework/filter/commit/852c7e101c649500d3af58ffb8baf15d7c86d825
- https://github.com/joomla-framework/filter/commit/fcde280785f188e93530f7da68102f7dd8f9f723
- https://developer.joomla.org/security-centre/1010-20250901-core-inadequate-content-filtering-within-the-checkattribute-filter-code.html
- https://github.com/joomla/joomla-cms